NexusN9508配置Qos

NexusN9508配置Qos

配置流量监控，提示需配置TCAM region

switch(config-if)# service-policy type qos output bigdata-qos

Unable to perform the action due to incompatibility:  Module 1 returned status "TCAM region is not configured. Please configure TCAM region and retry the command"

解决办法

根据您提供的信息， 您当前配置QOS报错是由于e-qos这个TCAM为0 ：

2022 Apr  1 22:33:20%switch$ VDC-1 %$ %ACLQOS-SLOT1-2-ACLQOS_FAILED: ACLQOS failure: TCAM region is not configured for feature QoS class IPv4 direction egress. Please configure TCAM region Egress IPV4 QoS [e-qos] and retry the command. >>>>>>>>>>>

Egress:

----------

Region                  GID     Base     Size     Width

---------------------------------------------------------------------------------------------

Egress IPV4 QoS [e-qos](  25)      28        0        0        2                                       >>>>>>>

Egress IPV6 QoS [e-ipv6-qos](  26)      29        0        0        2

Egress MAC QoS [e-mac-qos](  27)      30        0        0        2

Egress IPV4 VACL [vacl](  28)      31        0        0        1

Egress IPV6 VACL [ipv6-vacl](  29)      32        0        0        2

Egress MAC VACL [mac-vacl](  30)      33        0        0        2

Egress IPV4 RACL [e-racl](  31)      34     4352      768        1

Egress IPV6 RACL [e-ipv6-racl](  32)      35        0        0        2

Egress IPV4 QoS Lite [e-qos-lite](  33)      36        0        0        1

Egress System(  38)      24     3584      256        1

Egress FCoE Counters [fcoe-egress](  96)     110        0        0        1

Action plan:

需要改region大小, 您可以从其他的TCAM空间重新分配空给e-qos， 例如以下例子为减少e-racl到e-qos：

F241-15-23-N9K-9508-A(config)# hardware access-list tcam region e-racl 256             <<< 之前是768

Please reload all linecards for the configuration to take effect

F241-15-23-N9K-9508-A(config)# hardware access-list tcam region e-qos 256             <<< 之前是0，修改的大小为256的倍数.

Please reload all linecards for the configuration to take effect

做完上述配置后保存并重启板卡， 重启后您可以配置出向QOS了。

结论

Cisco Nexus9508设计用来高速转发数据，QOS也是支持但是很少这样配置

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